Differences

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--- projects:high_altitude_slug:old_junk [2006/06/21 19:21] – phatmonkey
+++ projects:high_altitude_slug:old_junk [2008/07/19 23:33] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-====== Old junk ======
+REDUNDANT - guess this can be dug up from history
-====== hardware ======
-===== The slug =====
-{{ :projects:high_altitude_slug:linksys_nslu2_board.jpg?200|The Linksys NSLU2}}
-The on board computer will be a Linksys NSLU2 network storage device (the "slug"), which is a low power, small and cheap 266MHz XScale platform that runs [[wp>Linux]] natively. It has 32MB of SDRAM, 8MB of flash memory (for OS), a network port, two USB 2.0 ports and a serial port.
-[[wp>CompactFlash]] cards connected via USB will be used as a storage medium. They have no moving parts and will survive heavy impacts.
-We have [[wp>Debian]] Etch running on it slug at the moment.
-It has the [[http://www.nslu2-linux.org/wiki/HowTo/ForcePowerAlwaysOn|force power on modification]], and I will probably remove a resistor to [[http://www.nslu2-linux.org/wiki/HowTo/OverClockTheSlug|de-underclock it]] at some point.
-===== I/O =====
-For all I/O tasks, we will use an [[http://www.arduino.cc/|Arduino]] board, which is based around an Atmel chip. It has a built in USB-serial adaptor. It has various analogue inputs and digital in/outputs, which can also produce PWM signals for servos.
-====== software ======
-===== Arduino =====
-The Arduino (for now) will need to transmit data (0 - 255?) from the IR thermopiles on the analogue inputs at regular intervals (1/10 second?) to the slug. It will need to change the pulse rate on the servo outputs based on commands received from the slug. This could either be done with specific times specified (X ms pulses) or a processed range (0 - 255?).